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Overwriting my local branch with remote branch [duplicate]

... I did this with one slight change and it didn't work: git fetch --all, git reset --hard SHA1OFANOLDCOMMIT, (some other stuff), git reset --hard origin/branch. The end result was that I was still at the old commit. So, this appro...
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How to reset a single table in rails?

... In case anyone tried this and got an error, I did ActiveRecord::Base.connection.execute("DELETE from 'yourtablename'") and it worked because it would give me an error that said sqlite_sequence where name = 'yourtablename' is not a valid table name or something like that. ...
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Rails: select unique values from a column

... I did a: group(:rating).collect { |r| r.rating } Since map == collect, where can I read about this sintax you used (&:rating)? I don't see this in Ruby's documentation. – alexandrecosta ...
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How to detect input type=file “change” for the same file?

...t will erase the file path making it changeable every time. Example on jsFiddle. Or you can simply use .prop("value", ""), see this example on jsFiddle. jQuery 1.6+ prop Earlier versions attr share | ...
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Tools to selectively Copy HTML+CSS+JS From A Specific Element of DOM [closed]

...n and play around with it locally, it would be a pain to copy all the individual elements and their associated CSS. And probably just as much work to save the entire source and cut out the unrelated code. ...
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How do I calculate a point on a circle’s circumference?

... trying to derive this equation for an hour now. Thanks. Who know the trig identities you learned in high school would be so helpful. – Isioma Nnodum May 28 '14 at 22:37 1 ...
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Group by month and year in MySQL

...ld contribute to more pressing questions too. You can find tips on to provide good answers here. – Mifeet Apr 14 '14 at 13:18 ...
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What does the @ symbol represent in objective-c?

... The @ character isn't used in C or C++ identifiers, so it's used to introduce Objective-C language keywords in a way that won't conflict with the other languages' keywords. This enables the "Objective" part of the language to freely intermix with the C or C++ par...
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Is it possible to get element from HashMap by its position?

...Integer, String>(); Define like this and. private Entry getEntry(int id){ Iterator iterator = map.entrySet().iterator(); int n = 0; while(iterator.hasNext()){ Entry entry = (Entry) iterator.next(); if(n == id){ return entry; ...
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When should I use Inline vs. External Javascript?

...b scalability has changed. Reducing the number of requests has become a valid consideration due to the latency of making multiple HTTP requests. This makes the answer more complex: in most cases, having JavaScript external is still recommended. But for certain cases, especially very small pieces of ...